page_title: San Francisco volcanic field
hierarchical_section_title: San Francisco volcanic field
caption_attribution_description: English: On July 12, 2016, the Operational Land Imager (OLI) on the Landsat 8 satellite captured a natural-color image (above) of the crater and the surrounding San Francisco Volcanic Field. The image was draped over terrain data from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Note: the scene was rotated to create this image, so north is to the right. The closeup below shows Sunset Crater as observed by OLI, but without the terrain drape (north is up). To the east of the cone, a field of dark, hardened rock from the Bonita Lava Flow is still visible. Sunset is the youngest in an aggregation of more than 600 volcanoes in the San Francisco Volcanic Field, according to the U.S. Geological Survey. The field covers roughly 1,800 square miles (4,600 square kilometers), and many of its volcanoes formed over the course of months to years. [References in original at link]
context_page_description: The San Francisco volcanic field is an area of volcanoes in northern Arizona, north of Flagstaff, US. The field covers 1,800 square miles of the southern boundary of the Colorado Plateau. The field contains 600 volcanoes ranging in age from nearly 6 million years old to less than 1,000 years, of which Sunset Crater is the youngest. The highest peak in the field is Humphreys Peak, at Flagstaff's northern perimeter: the peak is Arizona's highest at 12,633 feet and is a part of the San Francisco Peaks, an extinct stratovolcano complex.
context_section_description: The San Francisco volcanic field is an area of volcanoes in northern Arizona, north of Flagstaff, US. The field covers 1,800 square miles (4,700 km²) of the southern boundary of the Colorado Plateau. The field contains 600 volcanoes ranging in age from nearly 6 million years old to less than 1,000 years (Miocene to Holocene), of which Sunset Crater is the youngest. The highest peak in the field is Humphreys Peak, at Flagstaff's northern perimeter: the peak is Arizona's highest at 12,633 feet (3,851 m) and is a part of the San Francisco Peaks, an extinct stratovolcano complex.
caption: Satellite image of part of the San Francisco volcanic field, presented as a 3D terrain model. Note that North is to the right.
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